Vlad,
Don't be daft. An infinite chain of causes unnecessarily multiplies entities infinitely...what are you thinking of?
Wrong again. A universe with infinite prior events requires fewer assumptions than a creator with infinite prior creators. Your only way out of that is special pleading (ie, magic), but that’s just white noise.
A. You will be £10m better off this weekend because you will win the lottery.
B. You will be £10m better off this weekend because Father Christmas will drop it down your chimney.
Which of these truth claims do you "prefer"? Why?
In what way does the universe provide sufficent reason for itself?
In what way does you god provide sufficient reason for itself? The difference between us though is that I can show that there is a universe, so I start with fewer assumptions than you do.